docs: def redirect_to_unlocalized(*args, **kwargs):
      '''Redirect lang-prefixed urls to no prefixed URL.'''
      endpoint = request.endpoint.replace('_redirect', '')
      kwargs = multi_to_dict(request.args)
      kwargs.update(request.view_args)
      kwargs.pop('lang_code', None)
      return redirect(url_for(endpoint, **kwargs))